Grain drier and cooler.



PATENTED A, PR.. 28, 1903.

G. P. VERRELL.

GRAIN DRIER AND COOLER.

APPLICATION FILED FEB. 28, 1903.

N0 MODEL.

Fig.1.

IIIY'GI'II F.

-Attorne\'.

Witnesses FFICE.

CHARLES F. VERRELL, OF GRAND RAPIDS, MICHIGAN.

GRAIN DRIER AND CODLER.

SIECIFICATION forming part of Letters Patent N 0. 726,805, dated April 28, 1903. Application filed February 28, 1903. Serial N 145,586. (No model.)

T on whom it may concern.-

Be it known that I, CHARLES F. VERRELL, a citizen of the United States, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Grain Driers and Coolers, of which the following is a specification.

My invention relates to improvements in machines for drying grains after having been washed, cooked, and scoured in the process of manufacturing pure foods; and its objects are, first, to providea grain-drier with which grain may be thoroughly dried and cooled by the one process, and, second, to economize in time, space, and expense in the construction of these driers. I attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure 1 is an elevation of my machine with a part of the case cut away to show the relative positions of its several parts. 2 is a sectional plan of the same on the line X X of Fig. 1, showing the steam-coil and a portion of the lower cylinder. Fig; 3 is a back end elevation of the case, showing the ends of the cylinders. elevation of one of the cylinders on the line y y of Fig. 3. Fig. 5 is a sectional end view of the same on the line Z Z of Fig. 4.

Similarletters refer to similarparts throughout the several views.

Having constructed proper supportingframes, as indicated at J J, I construct cylinders B B upon shafts G and support the shaftsin the supporting-frames,substantially as indicated in Fig. 1, and secure the cylinders in an inclosing compartment A. These cylinders are constructed by placing heads F and F upon the shafts G and covering these heads and the space between them at their peripheries with a finely-woven wire cloth or gauze b, which is securely attached at the end to the rings 17, so that it will retain its shape when in the process of drying or cooling grain.

The heads F are constructed with a hole through the center, as at f in Figs. 3 and 4, so that the lower ends of the hoppers D and D may enter, as indicated in Figs. 1 and 4, for the purpose of conducting the grain into. the cylinders. To support these heads, I

Fig. 4 is a sectional set the hub 9 off from the surface and connect the head and hub by curved arms f, so that the lower ends of the hoppers D and D will project well into the cylinders and deposit the grain a safe distance from the head,-

as indicated by the arrows in Fig. 4. ,The heads Fare provided with openings fat the periphery, so that the grain may pass freely through, and I place inwardlyprojecting wings H upon the inner surface of the roll, as indicated in Figs. 4 and 5, which act a double purposefirst, to support the gauze covering, and, second, to carry the grain up beyond the vertical center of the roll, so that it will be constantly circulating in the roll as it revolves.

I set the cylinders upon an angle of about five degrees, the cylinder B being above the cylinder B and inclining downward from the hopper D toward the hopper D and the cylinder B inclining downward from the hopper D to the hopper D", where the grain is discharged from the cylinder B, so that grain that enters the cylinder B at D will be constantly carried upward as the cylinder revolves until it slides from the wings H, when it will fall to the lower side of the cylinder upon a slight angle with the cylinder that keeps it constantly moving toward the lower end of the cylinder, where it is discharged.

another, a simple form being indicated at I I in Fig. l. I

To dry the grain after it has been washed, &c., I place a steamcoil 0 within the caseA and under the upper cylinder, so that air passing through the case, as indicated by the upwardly-inclined arrows in Fig. 1, will be thoroughly heated and will circulate freely in the cylinder B around and through the conthrough the cylinder, as hereinbefore eX-' plained. By this means the lower cylinder and its contents are cooled by the same blast of air that afterward passes through the steam-coil and is heated and thence passing through the cylinder B and out of the vents a dries the grain in the cylinder B.

The hopper D may be made wit-h simply an aperture for the passage of the shaft G; but I prefer that it be divided and provided with a slat d, as shown in Fig. 3, as with this construction it may be readily removed and replaced.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

I 1. In a grain drying and cooling machine an inclosing case in combination with cylinders set one above the other and converging toward a given point, the cover of said cylinders being made of finely-woven wire-gauze, hoppers for conducting grain into and out of said cylinders, a steam heating-coil below the upper cylinder and a forced-cold-blast fan below the lower cylinder, substantiall y as and for the purpose set forth.

2. In a grain drying and cooling machine, an inclosing case, revolving cylinders within said case said cylinders supported upon shafts andhaving receiving and discharge heads supporting the casing, a casing constructed of finely-woven wire-gauze, the receiving-heads having an opening through the center and hubs and inwardly-curved arms connecting it with the shaft, the discharge-heads having apertures at their peripheries, radial wings attached to and connecting said heads near the periphery, the cylinders stationed one above the other and converging toward a given point, a steam heating-coil between the cylinders, a cold-blast fan below the lower cylinder, hoppers leading to the upper cylinder and from the lower cylinder at one end and connecting the cylinders at the other end, and driving mechanism connected with the cylinders, substantially as and for the purpose set forth.

3. In a grain drying and cooling machine an inclosing case cylinders within the inclosing case situated one above the other and converging toward a given point, the walls of said cylinder constructed of fine wire-gauze heads supporting said gauze and having openings for the passage of grain-wings converging from the inner surface of the cylinder toward the center, shafts supporting said cylinders and driving mechanism connected therewith, retaining-rings encircling the cylinders, hoppers leading to and from the cylinders, a heating-coil between the cylinders and a cold-blast fan below the lower cylinders, substantially as and for the purpose set forth.

Signed at Grand Rapids, Michigan, February 25, 1903.

CHARLES F. VERRELL.

In presence of- NELLIE CILLEY, ITHIEL J. CILLEY. 

